Document Detail


Predicting primate responses to "Stochastic" demographic events.
MedLine Citation:
PMID:  23179536     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Comparative approaches in contemporary primate behavioral ecology have tended to emphasize the deterministic properties of stochastic ecological variables. Yet, primate responses to ecological fluctuations may be mediated by the interactions among demographic processes at the levels of individuals, groups, and populations. In this paper I examine long-term data collected from June 1982-July 1998 on one expanding group of muriquis (Brachyteles arachnoides) at the Estação Biologica de Caratinga, Minas Gerais, Brazil to explore the demographic and life history correlates of reproductive seasonality and skewed infant sex ratios. Variation in the size of annual birth cohorts (≥2 infants) was positively related to variation in the annual distribution of births (r (s)=0.96,n=10,p<0.01), indicating the importance of considering the effects that the number of reproductive females may have on interpretations of reproductive seasonality. The female-biased infants sex ratio documented from 59 births was attributed exclusively to multiparous mothers. Primiparous mothers produced comparable numbers of sons (n=6) and daughters (n=7), and were increasingly likely to produce daughters with each subsequent reproductive event. Seven of the 11 females that have produced≥3 infants to date exhibited biases in favor of daughters whereas only 1 was biased in favor of sons. Variation in female sensitivity to local resource competition at different stages of their life histories may account for the female-biased infant sex ration in this population.
Authors:
K B Strier
Related Documents :
11928926 - First confirmed case of neospora caninum-associated abortion outbreak in portugal.
17475426 - Post-mortem stability and redistribution of carbohydrate-deficient transferrin (cdt).
7184996 - Serum ethyl alcohol levels and osmolal gaps.
3372336 - Losses related to the ingestion of lincomycin-medicated feed in a range sheep flock.
11928926 - First confirmed case of neospora caninum-associated abortion outbreak in portugal.
16912626 - Sharing features of uncommon respiratory syncytial virus complications in infants.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Primates; journal of primatology     Volume:  40     ISSN:  0032-8332     ISO Abbreviation:  Primates     Publication Date:  1999 Jan 
Date Detail:
Created Date:  2012-11-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401152     Medline TA:  Primates     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  131-42     Citation Subset:  -    
Affiliation:
Department of Anthropology, University of Wisconsin-Madison, 1180 Observatory Drive, 53706, Madison, Wisconsin, USA, kbstrier@facstaff.wisc.edu.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  The effects of dominance rank and group size on female lifetime reproductive success in wild long-ta...
Next Document:  Why dominants do not consistently attain high mating and reproductive success: A review of longitudi...